Coincidentally, when I was walking over to the gym this PM, I witnessed a four-lane street crossing by a Mallard and 10 chicks. Mom walked up to the curb, looked both ways and headed across with all ten in tow while traffic stopped. All but #10 made it over the opposite curb the first try. After about five tries, I started to help it, but on the sixth try he made it up and all ten went on their merry way